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Is JavaScript passing by reference or passing by value?

Is JavaScript a cross-over or cross-over language?

Also it is different for primitive Vs types for objects?

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Objects are passed by reference, and primitives are passed by value.

Note that primitive values โ€‹โ€‹include the following:

  • number
  • Line
  • boolean
  • undefined
  • null

You can find more information in MDN for functions .

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He uses an assessment strategy called sharing challenge .

All types are passed by value. There is no pass-by-reference, otherwise you can change the contents of the variables declared on the function call site. Usually people say that objects are passed by reference in JS. They are actually transmitted through sharing, which means that you can change the properties of the object, and these changes will be visible to those that contain a link to this object, but this link itself is not modified.

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Everything except primitives is passed by reference.
Almost everything in JavaScript is an object. As Sirko said, objects are passed by reference.

Thus, functions / arrays / objects are passed by reference, regardless of whether you are talking about a root object attached to var, or you are talking about an object / method encoded 3 points in depth, or you are talking about an object in an array, as a property of an object, in an array of objects ...

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